Example 2

Each girl in Mr. Sanson’s class and in Mrs. Kwei’s class measured her own height. The heights were plotted on the dot plots below. Use the dot plots to compare the heights of the girls in the two classes.

Compare the range of recorded values.

Compare the middle values of the data sets.

Compare the variation in the data sets.

This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit www.walch.com for more information.